Window lock



Aug. 11., 1931-. w. F. GOA DY ET-AL 1,818,043

WINDOW LOCK Filed Feb. 11, 1929 J A? BY I ATTORNE Q a window frame 11.

Ratented Aug. 11, 1931 UNETED STATES WILLIAM F. COADY AND SYLVESTEB COADY, OF DETROIT, MICHIGAN WINDOW LOCK Application filed February 11, 1929." Serial No. 838,970.

Our invention relates to a new and useful improvement in a window lock and has for its object the provision of a device which may be easily and quickly attached to a window 5 frame so as to permit relative movement of a pair of windows slidably mounted in a sash to a predetermined position of movement and effectively locl: the windows against further relative movement in the same direction.

Another object of the invention is the provision of a lock of this class which will automatically be locked in operating position upon movement of the windows to the predetermined relative position.

Another object of the invention is the provision of a lock of this class which will be simple in structure, economical of manufacture and highly eiiicient in use.

Other objects will appear hereinafter.

The invention consists in the combination and arrangement of parts hereinafter described and claimed.

The invention will be best understood by a reference to the accompanying drawings 25 which form a part of this specification, and

in which,

Fig. 1 is a perspective view of the invention showing it applied and in operative position.

Fig. 2 is a perspective view of the invention showing it applied and in inoperative position.

Fig. 8 is a view taken on line Fig. at is a view taken on line 4- of Fig. 1.

In the drawings, we have illustrated the invention mounted on a rail 9 of a window sash which is adapted to move relatively to the window sash having the horizontal rail 10, these windows being mounted slidably in Mounted on the upper surface of the rail 10 is a wear plate 12. The lock comprises a sleeve 13 formed on a single strip of metal and provided with the radially outwardly extending flanges 14 and 15 38 of Fig. 1.

through which nails or other suitable fastening means may be projected for securing the sleeve 13 on the rail 9, this sleeve serving as a supporting member for the lock. This lock is formed from a rod 16 having the angularly turned end 17. The opposite end of the rod is also angularly turned and formed wedge-shaped as at 18, the portion 18 being extended in a different plane than the portion 17, these portions extending at an angle of approximately seventy degrees to each other.

hen the device is mounted on a rail 9 as indicated in Fig. 1 and the portion 17 turned outwardly so as to engage the wear plate 12 when the lower sash is moved upwardly relatively to the upper sash, the wedge-shaped portion 18 will engage the rail 9 and be positioned between the rail 9 and the vertically extending rail 19 so that a turning of the rod 16 tomove the portion 17 into inoperative position cannot be effected until the lower window sash is moved downwardly to closed position. Thus, a movement of the lock to inoperative position from the exterior of the building without breaking of the window is rendered impossible.

When it is desired to move the lock to inoperative position, the angularly turned portion 17 will be turned to engage the glass 20 upon which the wedge-shaped portion 18 will lie in a position to permit free passage of the windows relatively to each other.

A window lock of this class may be very cheaply manufactured while at the same time it is durable and most efiicient in use.

While we have illustrated and described the preferred form of our invention, we do not wish to limit ourselves to the precise detail of structure shown but desire to avail ourselves of such variations and modifications as come within the scope of the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. A window lock of the class described comprising: a supporting member; a rod swingably mounted on said supporting memher, the opposite ends of said rod being angularly turned and extending at an angularity to each other less than a right angle.

2. A window lock of the class described comprising: a supporting member; a. rod rotatably mounted on said supporting member, the opposite ends of said rod being angularly turned and extending at an angularity to each other of less than ninety degrees, one of said ends being formed wedge-shaped.

3. A Window lock of the class described comprising: a sleeve formed from a strip of metal doubled upon itself, the edges of said strip being extended outwardly to provide radially extendinflflangesg V a rod rotatably mounted in said sleeve and having its opposite ends angularly turned to lie in engagement with the ends of said sleeve, said ends of said rod being extended angularly to each other at an angle less than ninety degrees, one of said ends being wedge-shaped.

In testimony whereof We have signed the foregoing specification VVILLIAlVI F. COADY. SYLVESTER COADY. 

